Retransmission and fallback for autonomous uplink transmission

    公开(公告)号:US11690066B2

    公开(公告)日:2023-06-27

    申请号:US16525410

    申请日:2019-07-29

    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit an autonomous uplink (AUL) transmission to a base station using a configured resource set, the AUL transmission comprising reference signals and data signals. The UE may determine whether a response signal was received from the base station in response to the AUL transmission. The UE may determine whether the response signal indicates that the base station received the reference signals, or the reference signals and the data signals. The UE may select an uplink transmission scheme to use for subsequent transmissions to the base station, the selected uplink transmission scheme based at least in part on the determination of whether the response signal was received from the base station and whether the response signal indicates that the base station received the reference signals or the reference signals and the data signals.

    Sounding reference signal carrier switching

    公开(公告)号:US11690019B2

    公开(公告)日:2023-06-27

    申请号:US17220895

    申请日:2021-04-01

    CPC classification number: H04W52/143 H04L5/0051 H04L25/0226 H04W24/08

    Abstract: Techniques for reference signaling related to transmission power controls for communication devices are discussed and provided. A user equipment (UE) receives one or more sounding reference signal (SRS) transmission power control (TPC) configuration for uplink carriers. The SRS TPC configuration can comprise a mapping from one uplink carrier to one or more component carrier sets. The UE receives, from a monitoring cell, a downlink control information (DCI) comprising a request for SRS transmission on uplink carrier(s) and/or TPC command(s) for SRS transmission on the uplink carrier(s). The UE determines uplink carrier(s) corresponding to the SRS request and/or the TPC command(s) at least based on a correspondence between the SRS TPC configurations and the one or more uplink carriers or based on starting bit information.

    Initiating random access in a target cell in a non-terrestrial network

    公开(公告)号:US11617215B2

    公开(公告)日:2023-03-28

    申请号:US17443154

    申请日:2021-07-21

    Abstract: Various aspects described herein relate to dynamically controlling a time when random access initiated in a target cell of a non-terrestrial network. For example, when a user equipment (UE) detects an event that triggers a random access procedure in the target cell, the UE may monitor a control channel from the target cell for a control signal during a target cell monitoring window prior to initiating random access in the target cell. For example, the control signal may include a dynamic indication to identify UEs allowed to initiate random access, whereby a UE is not permitted to autonomously start contention-based random access in the target cell during the target cell monitoring window unless the UE has received the control signal. In this way, the target cell may regulate a rate at which UEs initiate the RACH procedure in order to manage congestion in the target cell.

    Techniques for wireless communications using preconfigured uplink resources

    公开(公告)号:US11616528B2

    公开(公告)日:2023-03-28

    申请号:US16865216

    申请日:2020-05-01

    Abstract: Methods, systems, and devices for wireless communications are described that support techniques for wireless communications using preconfigured uplink resources. Generally, the described techniques provide for enhancement of communication features including frequency hopping, an uplink control channel, coverage enhancement, timing advance, uplink power control, reconfiguration, a downlink control channel, a downlink data channel, retransmissions, or subcarrier spacing for a UE in idle mode. The UE may receive an uplink resource configuration for uplink communications in idle mode, the uplink resource configuration comprising an indicator associated with allocated resources for the uplink communications in idle mode and a set of parameters. The UE may transmit, while in idle mode, a first uplink transmission associated with a transport block on the allocated resources and according to one or more of the parameters, and monitor for a response to the first uplink transmission.

    RANDOM ACCESS FOR AERIAL USER EQUIPMENTS IN CONNECTED MODE

    公开(公告)号:US20230060998A1

    公开(公告)日:2023-03-02

    申请号:US17461611

    申请日:2021-08-30

    Abstract: Methods, systems, and devices for wireless communications are described. In a wireless communications system, a base station may transmit an indication of a pre-compensation timing value for transmission of a random access message by an aerial user equipment (UE), the random access message part of a random access procedure between the base station and the aerial UE when the aerial UE is in a connected state. The pre-compensation timing value may be based on a location of the aerial UE. In some examples, the base station may monitor a set of random access resources associated with the pre-compensation timing value and the aerial UE for the random access message, and the aerial UE may transmit the random access message using a first random access resource of a set of random access resources associated with the pre-compensation timing value and the aerial UE.

Patent Agency Ranking